A team of scientists from England and Germany have shown that slime-forming cyanobacteria see the world much like we do -- with eyes.
Mullineaux and his colleagues looked at how cyanobacteria process and respond to light. Cyanobacteria are a type of algae-like bacteria that form thin layers of green slime on seaside rocks.
According to the new research, published in the journal eLife, the bodies of bacterium cells double as a lens -- the world's smallest camera lens. As light passes through the cell body, it is refracted onto a point on the opposite side of the cell.